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Measure if a mountain biker stops at a sign. If confirmed, open a gate and once they have passed the gate, close it and begin a LED timer display sequence.

For our mountain bike races, there is a need for competitors to stop at a stop sign on the course. Rather than have a volunteer stand at the stop sign to check that a competitor comes to a stop, it might be easier to develop an electronic solution. This stopping is necessary to ensure all competitors start from the same location.

I think the electronic part of the project is relatively simple for the experienced Freelancer. However, some testing/adjustment may need to be made to the sonar sensor to ensure it is working at desired. This system will be deployed outside and I have not been impressed with PIR sensors in the past - so hopefully the Sonar Sensor solution may work (I am also open to any other ideas a Freelancer may have!)

The adjustment will come in the measurements and what we determine as a 'stopped' rider and 'departed' rider. The most important thing here is consistency. I don't mind if we have a little 'play' in the system - as long as its easy to understand and the results are replicated.

Ideally, I would like the solution mounted to a pole as shown in the attached images. I am not expecting the Freelancer to undertake fitment to a box or pole, but please bear this in mind regarding mounting and setup.


- I have several Arduino boards and batteries from an unfinished project that I could use

- The most affordable sensors I have found would be these [login to view URL] and picture attached - but I am open to suggestions.

- I need to construct 7 of these units.

Please see the accompanying images which offer some more explanation of the desired system.

If you have any questions, please ask.

Kĩ năng: Arduino, Điện tử

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Về Bên Thuê:
( 14 nhận xét ) Mandurah, Australia

ID dự án: #18896528

Được trao cho:


Greeting there , I could absolutely help you with your Arduino project i am very excited work on your project and help you get it done in short time About my experience : [login to view URL] Thêm

$555 AUD trong 10 ngày
(34 Đánh Giá)

14 freelancer đang chào giá trung bình $634 cho công việc này


Hi,client. I have 15+ years experience in a circuit, PCB design, manufacture and assemble, and firmware coding. I had developed many products ago using various microcontroller including STM32 serial, Arduino, Raspb Thêm

$1000 AUD trong 30 ngày
(39 Nhận xét)

Hello sir, I have experience in designing electronics circuits and can make your project. i will make your project completely on my side and will deliver a working prototype. I can also develop hardware compatible and Thêm

$700 AUD trong 20 ngày
(32 Nhận xét)

Hello, Have a great day. We will ship fully working prototype as you needed. We will keep provision of Remote firmware update so that onsite testing can be done. Please feel free to contact us. Best Regards, Shah Thêm

$1500 AUD trong 30 ngày
(44 Nhận xét)

hi there i am an electrical engineer with 8+ years of experience related to arduino and sonar. i can design this project for you and can ship you a working prototype to you. let me know if you are interested.

$1000 AUD trong 10 ngày
(27 Nhận xét)

Hello there, I am an Electrical Engineer by profession and have been doing Arduino projects for a while now. I have worked with quite a lot of sensors and know all about configuring and debugging them. You can visit Thêm

$555 AUD trong 10 ngày
(18 Nhận xét)

Hello I have got your job posting “Measure if a mountain biker stops at a sign. If confirmed, open a gate and once they have passed the gate, close it and begin a LED timer display sequence.” and I am very much Thêm

$400 AUD trong 7 ngày
(35 Nhận xét)

Hi sir. I am an electronics engineer with experience in embedded system design.I have rich experience on Ardunio, various Sensor and LCD. I have understood your requirements. and would like to discuss it in more deta Thêm

$800 AUD trong 10 ngày
(9 Nhận xét)

Hi, I am interested in your project. You can see my projects on [login to view URL] and as well as on [login to view URL]

$444 AUD trong 10 ngày
(9 Nhận xét)

Hello! I had gone through your project details. I can assist you in developing such device. Following will be project layout:- 1. Preparation of flow layout of program as per your requirement. 2. Setting up o Thêm

$250 AUD trong 10 ngày
(13 Nhận xét)

Yes Buddy, its me Imad, have done 200+ projects regarding matlab, arduino, c#, vb dot net, web dev and android,,,,,,,,U will feel brotherhood,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

$250 AUD trong 10 ngày
(22 Nhận xét)

I'm reading your project and analyzing the data, for programming I can excel, I think there is an electrical part that must be analyzed and treated, if you allow me to work on this project I will deal with an optimal Thêm

$555 AUD trong 10 ngày
(0 Nhận xét)

Hello I am Electronic Engineering and have working experience of more than 3 years of teaching and developing products based on Arduino specially. would love to help you.

$250 AUD trong 10 ngày
(0 Nhận xét)

Propose using a ToF sensor such as the VL53L1X. It has a much narrower detection cone that ultrasonic sensors.

$611 AUD trong 10 ngày
(0 Nhận xét)